/Engine/Plugins/AI/MassCrowd/Source/MassCrowd/Public/MassCrowdSubsystem.h
Callback to keep count of entities currently on a given lane.
void OnExitTrackedLane ( const [FMassEntityHandle](API\Plugins\MassEntity\FMassEntityHandle) Entity, const int32 LaneIndex, [FCrowdTrackingLaneData](API\Plugins\MassCrowd\FCrowdTrackingLaneData) & TrackingData )